Thanks to a bit of code digging from the folks at Android Police, details of a possible 4K upgrade for owners of HD movie titles from Play Movies has us quite excited.

To understand the context of this news, let’s rewind to last year. In September, Apple introduced 4K HDR content to iTunes. When this was done, owners of existing HD titles on iTunes saw supported movies get a free upgrade to the 4K version. When Google started offering 4K HDR movies on Google Play, us Android folk wondered...